R2 = (4.53 x 105r2Δ2)/(100.4v x p)
0.4 x 18.8 = 7.52
107.52 = 33.113 x 106
R2 = ((453 x 105 x (97.6)2(96.6)2)/(33.113 x 106 x 0.86)
R2 = 14.140 x 106 x 10-1
R = (14.140 x 105)1/2 = 1189.0km
Note: The radius of Pluto is 1150 km (i.e., Eris is larger than Pluto).